diff --git a/bsp/lpc55sxx/Libraries/LPC55S6X/LPC55S6X/gcc/startup_LPC55S69_cm33_core0.S b/bsp/lpc55sxx/Libraries/LPC55S6X/LPC55S6X/gcc/startup_LPC55S69_cm33_core0.S
index 641ff121b179f567bad7b218ad90b29da13e488a..5c547b8e3298825f212979503c6c9f12be0cf9eb 100644
--- a/bsp/lpc55sxx/Libraries/LPC55S6X/LPC55S6X/gcc/startup_LPC55S69_cm33_core0.S
+++ b/bsp/lpc55sxx/Libraries/LPC55S6X/LPC55S6X/gcc/startup_LPC55S69_cm33_core0.S
@@ -199,7 +199,7 @@ Reset_Handler:
 #else
     ldr   r0,=__libc_init_array
     blx   r0
-    ldr   r0,=main
+    ldr   r0,=entry
     bx    r0
 #endif
     .pool
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/.vscode/launch.json b/bsp/lpc55sxx/lpc55s69_nxp_evk/.vscode/launch.json
new file mode 100644
index 0000000000000000000000000000000000000000..4806836f25e8bf6e4c46d8a106045324a4130869
--- /dev/null
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/.vscode/launch.json
@@ -0,0 +1,16 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "cwd": "${workspaceRoot}",
+            "executable": "rtthread.elf",
+            "name": "Debug",
+            "request": "launch",
+            "type": "cortex-debug",
+            "servertype": "jlink",
+            "interface": "swd",
+            "device": "LPC55S69_M33_0",
+            "runToMain": true
+        },
+    ]
+}
\ No newline at end of file
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/board/board.h b/bsp/lpc55sxx/lpc55s69_nxp_evk/board/board.h
index 23eda2b85bead5c3bed22da6f67fcda3c452bc72..7500557fcba335e75df595360255523fdf331718 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/board/board.h
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/board/board.h
@@ -33,6 +33,7 @@
 extern int Image$$ARM_LIB_HEAP$$ZI$$Base;
 extern int Image$$ARM_LIB_STACK$$ZI$$Base;
 #define HEAP_BEGIN  ((void *)&Image$$ARM_LIB_HEAP$$ZI$$Base)
+#define HEAP_END    ((void*)&Image$$ARM_LIB_STACK$$ZI$$Base)
 #elif defined(__ICCARM__)
 #pragma section="HEAP"
 #define HEAP_BEGIN  (__segment_end("HEAP"))
@@ -40,8 +41,8 @@ extern int Image$$ARM_LIB_STACK$$ZI$$Base;
 extern int __HeapBase;
 extern int __HeapLimit;
 #define HEAP_BEGIN  ((void *)&__HeapBase)
+#define HEAP_END  ((void *)&__HeapLimit)
 #endif
-#define HEAP_END    ((void*)&Image$$ARM_LIB_STACK$$ZI$$Base)
 
 void rt_hw_board_init(void);